Typewriting-machine



I. B. HOLDEN. TYPEWRITING MACHINE.

APPLICATION FILED JAN. 20, I920.

2 Wm H i Y ,E B 11% TI 5 N 2 N R e E pd U um W M i Y m a P WITNESSES f 2224 2 v J. B. HOLDEN.

TYPEWRITING MACHINE.

APPLICATION FILED JAN.20. 192p.

Patented June 21, 1921.

4 SHEETS-SHEET 2.

INVENTUR /@.#AM

HIE ATTORNEY WITNESSES v NZ-:2.

J. B. HOLDEN.

TYPEWRITING MACHINE.

APPLICATION FILED JAILZO. I920.

Patented J 11116 21, 1921.

4 SHEETS-SHEET 3.

57 Kr- I g9 75 68667371 8 E F' i v 5 55 WITNESS 5 E e/W HIE ATTURNEY L B. HOLDEN.

TYPEWRITING MACHINE. APPLICATION FILED "mmzo, 1920.

Patented June 21, 1921.

4 SHEETS-SHEET INVENTEIR n4 jkm haw Q,

Hi5 ATTBRNEY UNITED STATES PATENT OFFICE.

JOSEPH IB. HOLDEN, O1 UTIGA, NEW YORK, ASSIGNOB TO REMINGTON TYPEWRITEB COMPANY, OF ILIOH, NEW YORK, A CORPORATION OF NEW YORK.

TYPEWRITINGJIACHDIE.

Specification of Letters Patent.

Patented June 21, 1921.

Application filed January 20, 1920. Serial No. 352,659.

To all whom it may concern:

Be it known that I, Josnrrr B. HoLnnN, citizen of the. United States, and resident of Utica, in the county of Oneida and State of New York, have invented certain new and useful Improvements in Typewriting-Machines, of which the following is a specification.

My invention relates to typewriting machines and more particularly to line lock, alarm and margin stop mechanism therefor.

The main objects of my invention, generally stated, are to provide simple, compact, light and eflicient line lock, alarm and margin stop mechanism which may be manufactured at comparatively small cost. My invention is especially useful as contributing to the construction of a small, light, compact and highly eliicient yet comparatively inexpensive portable machine.

To the above and other ends which will hereinafter appear, my invention consists in the features of construction, arrangements of parts and combinations of devices set forth in the following specification and particularly pointed out in the appended claims.

In the accompanying-drawings, wherein like reference characters indicate corresponding parts in the various views,

Figure 1 is a fragmentary bottom plan view with parts omitted of one form of typewriting machine embodying my invention.

Fig. 2 is a fragmentary vertical fore and aft sectional view of the same taken on the line 'w-w of Fig. l and looking in the direction of the arrow at said line.

Fig. is a detail fra mentary vertical fore and aft sectional view on an enlarged scale of a portion of the line lock mechanism and associated parts, the section being taken on the line m-w of Fig. 4 and looking in the direction of the arrow at said line.

Fig. 4 is an enlarged detail fragmentary rear elevation of the parts shown in Fig. 3, together with some parts which are sectioned away in said last mentioned figure. Fig. 5 is an enlarged detail fragmentary horizontal sectional view taken on the line y-y of Fig. l and looking in the direction of the arrow at said line, the view showing the carriage stop and trip on the stop bar by which it is carried. 7

Figs. 6, 7 8, 9 and 10 are enlarged detail fragmentary rear elevations showing parts of the line lock, alarm and margin stop mechanism in the various positions they assame during the operation of the machine.

Fig. 11 is a detail perspective view of the line lock bar and some of the associated parts.

Fig. 12 is a detail fragmentary front elevation of the same, showing in section the four key levers represented in Fig. 13.

Fig. 13 is a side elevation with parts in section of the line lock bar and four key leyirs of diiferentlengths which eoact there- W1 Fig. 14 is an enlarged detail fragmentalongltudinal sectional view of the adjustable and resilient connection between the line lock lever and locking bar, the section being taken on the line 2-z of Fig. '1 and looking in the direction of the arrow at said line.

Parts are omitted from the various figures of the drawing, only so much of the complete machine being shown asmay be necessary to arrive at an understanding of my invention in its inclusion therein.

The present invention is shown embodied in a light portable top strike machine of the character disclosed in the application of A. W. Smith, Sr., No. 326,705 filed Sept. 27, 1919, and in my application, Sr. No. 351,197 filed Jan. 13, 1920. While the line lock, alarm and margin stop mechanism of the present invention was devised more es pecially for, and is particularly available in, a machine of the character disclosed in said applications, it should be understood that the invention may be incorporated in various other styles of typewriting machines.

An interior detachable frame which supports the working parts of the machine is itself contained within an outer sheet metal frame or casing 1. The interior supportin frame comprises side plates 2, a front comb plate 3 secured to the side plates, and a casting/l fixed to the side plates by screws p A type bar segment constitutes part of the casting 4 and with the interior frame re mains fixed while the platen receives a case shifting movement relativelyv thereto. A sheet metal top plate 6 is secured to the side plates 2, leaving a rear central opening through which type bars 7 are adapted'to move to the printing position. ,The sheet metal type bars are mounted on a pivot wire 8 to move rearwardly and downwardly and strike against the top face of a platen 9.

The heel of each type bar is provided with segmentally arranged teeth engaged by corresponding teeth 11 on a sheet metal sublever 12. Each sublever is pivoted at 13 on 5 a pivot wire supported by a segment 14 which in turn receives its support from or is an integral partof the casting 4. The forward end of each sub-lever 12 is connected by apivot 15 to :1 depending link 16, the lower end of which is pivoted at 17 to a. second sublever 18. The forward end of each sublever 18 is received in a guide slot in the comb plate 3. and is forked at 19 to straddle and be seated on the bottom edge or wall 20 of its guide slot to fulcrum thereon. A depending link 2-1 is pivoted at its upper end, as at 22, to the associated sublet'er 18, and at its lower end, as at 23, to the companion sheet metal key lever 24. The key levers extend fore and aft of the machine and are pivoted at their rear ends on a pivot wire carried by a sheet metal bracket and comb plate 26, secured by screws 27 to the casting 4. Each key lever is provided with a finger key 28, which keys in the present instance, as shown in Fig. 13, are arranged in four banks inaccordance withthe variation in the lengths of the key levers. The various key levers extend through guide slots in the forward comb plate 3. Each key lever is formed with an upwardly extending projection 29, which has a forwardly extending hook-like contact 30 at its upper end. These contacts are adapted to engage a locking bar, to limit the depression of each printing key lever and. thus prevent a complete printing movement thereof. This locking bar is shown in detail in Fig. 11, and comprises a sheet metal plate-like bar 31, having one or more longitudinally extending openings 32 therein. Rearwardly bent ears 33 are formed on the locking bar, and are perforated at 34 to receive and be loosely supported on a rock shaft 35. The shaft 35 extends across the machine above the key levers and is supported at its ends by the fixed side plates 2, and constitutes in effect apivot rod for the locking plate. The locking plate is substantially and vertically disposed and is provided with a rearwardly projecting flange 36 along the lower edge thereof. This flange is adapted to move beneath and coact with the contacts 30 on the key lovers to limit the printing movement of the latter, as shown in dotted lines in Fig. 13. It will be noted that at this time pressure exerted by the key levers against the locking bar is resisted directly by the pivot rod on which the locking bar is supported, the locking bar being dead centered at this time. It will also be observed that the sublevers 18 extend fore and aft of the machine through the openings 32in the locking bar and are 65 free to operate therein. The construction of the frame-like locking bar is such that while made of sheet fnetal and comparatively light, it is nevertheless rigid and effective to resist the strain exerted thereon in limiting the depression of the key levers.

From a consideration of Figs. 12 and 13 it will be seen that in the normal disposition of the parts the distances of the various contacts 30 from the locking flange 36 vary inversely as the lengths of the key levers. As the various keys 28 have a uniform dip, levers of different lengths have different extents of angular movement, and the contacts 30 are therefore varied as indicated in order that they may coact with the" locking bar in such a. manner as to arrest all of the keys after substantially the same extent of depression thereof. The looking bar is moved to operative or locking position by means which will be hereinafter described.

Not only is the platen 9 supported for case shifting movement, butso also are the entire carriage and various parts associated therewith.- Thus the platen is supportedby end lates 37 on a sheet metal base plate 38 o' the carriage, which extends throughout the length of the latter and is formed with grooved guide-ways 39. Anti-friction balls orrollers 40. are received in the guideways 39 and are also received in oppositely disposed guide grooves in carriage tracks or guide rails 41.

The latter are secured by screws 42 to sheet metal supporting plates 43 which are detachably secured by screws 44 to supporting flanges 45. The flanges 45 constitute parts of a sheet metal shift frame that is mounted for case shifting movement fore and aft of the machine and comprises, in addition to the supporting flanges 45, side bars 46 formed integral therewith and which extend fore and aft of the machine adjacent the fixed side plates 2. The forward ends of these side bars are pivoted at 47 to depending arms 1 48 fixed to the rock shaft Each supporting flange 45 is formed with a rearwardly extending car 49 to which is pivoted the upper end of an upright link 50. The lower end of each link is pivoted at 51 11 to an extension of the associated side plate :2. so as to provide parallel links for supporting the shift frame and the parts carried thereby at the rear of the machine and beneath the carriage. The detachable carriage-car 12 rying section of the shift frame also includes an integral cross bar 52, as best shown in Fig. 1, Returning springs 53 are each con nected at one end. as at 54, to an extension of one of the cars 49; and at the other end to a fixed pin 54* carried by the companion side plate 2, as shown in Fig. 1. to return the shift frame to normal position. Suitable key actuated means (not shown) are employed to shift the case shift frame and carriage.

menses Means such as are disclosed in my above mentioned pplication may be emplo ed.

A stop bar or rack 55 extends t roughout the length of the carriage, and is supported at its ends by sheet metal arms 56 which are pivoted at 57 to the end plates37 of the carriage. One of these pivoted arms is provided with an inwardly bent lug 58 which extends into a recess 59 in one of the end plates, and coacts with the walls 60 and 61 of the recess to limit the movement in opposite directions of the arms 56 and the stop bar 55 carried thereby. A wire spring 62 is fixed at one end to a screw 63 and is bent around the associate pivot screw 57, and bears at its opposite end on to of the rack bar to return it to, and norma y hold it in, the lowermost position; One of the arms 56 is bent laterally to provide a finger piece 64: to facilitate lifting the rack bar to its abnor mal or releasing position.

The rack bar carries aso-call'ed primary margin stop, designated as a whole by the reference numeral 65, anda so-called primary carriage (line lock) stop or trip, designated as a whole by the reference numeral 66. Referring more particularly to Fig. 5 it will be seen that the member 66 comprises a sheet metal plate, bent .on itself to provide two parallel side plates 68 united by an integral portion 69 which constitutes a locking tooth that is adapted to engage between the teeth of the rack bar. The side lates 68 are further secured together an maintained spaced apart by shouldered rivets 70, 71 and 7 2, between which the stop bar 55 is received,

the side lates embracing the bar on opposite.

sides. ne of the rivets 7O constitutes a fulcrum which bears against the teeth of the rackbar and enables the stop to be turned in order to throw the locking tooth 69 thereof into and out of engagement with the rack. This engagement is normally maintained by a wire spring 73 coiled around the rivet between the plates and bearing at one end against the rear edge of the rack bar, and at its opposite end against a washer 74 interposed between the side plates 68 and mounted on therivet 72. The outer edge of the washer extends beyond the edges of the plates 68 and is knurled, aS-indicated at 7 5 in Fig. 4, to provide a finger piece to facilitate turning the stop on its pivotal center and controllin its engagement with and disengagement rom the rack. A T-shaped sheet metal strip or plate 76 is secured to the under side of the member 67, being fixed thereto by the rivets 70 and 71. v The piece 76 is rovided with a dependin or ug 78 provided at one si c with an abrupt engaging face, and at its opposite side with a beveled face 79. From an inspection of Fig. 4 it will be-seen that the rivet 71 ex tends below the member 67 to form a trip or engaging pin 80.

stop portion The margin stop 65 is constructed in a like manner except that it has no trip pin, and a slightly different form of stop carry- 'ing plate 81 is carried at the under side of the member, but like the plate 76 is provided with a depending stop 82 beveled on one side, as shown at 83 in Fig. 10. Corresponding parts of the two stops are designated by like reference characters.

Oo'acting with the carriage-carried stops 78 and S2 is a stop 8% fixed to a sheet metal bracket 85 secured by screws 86 to the carriage rails 41. The stop 84 is arranged in the path of stops 7 8 and 82 and is adapted to be engaged thereby to arrest the carriage in its travel in opposite directions.

A. carriage alarm mechanism is provided for operation by the trip pin carried by the member 66. This alarm, mechanism comprises a sheet metal lever 87 pivoted by a shouldered pivot screw 88 on a depending arm 89 of the sheet metal bracket 85. An upwardly extending pin 90 is mounted on the rear end of the lever 87 for cotiperation with the trip pin 80. The pin 90 is beveled on one side at 91 to formia cam for cotiperation with the pin 80, as will hereinafter more clearly appear. A contractile spring 92 is connected at one end to the lever 87 and at its opposite end to a pin 93 which projects down from the bracket 85, and the motion of saidlever under the power of said spring, is limited by a lug 92 on the lever, cncountcring the arm 89 of bracket 85. A shouldered screw 94: projects from the under side of'the lever 87 and has a wire 95 coiled around it, one end 96 of the wire being received and anchored in an opening in the lever 87. The wire also is formed with a coil 97 intermediate its ends, and said wire and its coils constitute a resilient arm of lever 87, on the free end of which is carried a bell hammer 98 for cotiperation with the bell 99, which is secured by a screw 100 to the cross bar 52 of the shift frame. In operation, lever 87 is arrested by lug 92", and hammer 98 strikes the bell by overthrow. The construction is such that the trip pin 80 will coact with the pin 90, as indicated in Figs. 1 and 4, in the movement of the carriage from right to left, thereby turning the lever 87 against the force of the spring 92 and then releasing it to enable the sprlng 92 to return the lever to normal position and throw the bell hammer against the bell. On the return motion of the carria e, the pin 80 rides up over the incline 91 0 pin 90, and thus passes said pin 90 without ringing the bell, the rack bar 55 yielding upward about its pivots 57 in this operation.

The meansfor COIitIOlliIlgthG locking bar 31 comprises a sheet metal actuating member or hell crank lever 101, pivoted on a shouldered ivot screw 102 carried by a sheet metal racket 103, the latter being semenace cured by screws 104. to the fixed casting 1, so that said bracket and lever do not partake of the case shift movement of the carriage.

.The rearward extending arm of this lever is divided to provide two engaging members or contacts in different planes, the contact 105 being in rear of and bent to a higher plane than the contact 106. An inclined face or cam 107 extends from the contact 105 and to the left thereof for purposes which will presently appear. A contractile spring 108 is connected at one end to a pin 109 on the angular lever, and at its opposite end to a-pin 110 on the fixed bracket 103, and tends to return the angular lever and the parts connected therewith to normal position; The rightward extending arm of the lever 101 has its end bent at right angles to the plane thereof as indicated at 111, where it is perforated to receive freely therethrough a connecting rod 112 and a surrounding sleeve 113, as best shown'in Fig. 14. The connecting rod is threaded at 114 for cooperation with an internal thread in sleeve 113 and with a nut 115 arranged at one end of said sleeve, which sleeve has a polygonal head 116 at its opposite end. A coiled expansion spring 117 surirounds the sleeve and bears at one end against the head 116, and at its oppositeend against one side of the portion 111 of the controlling or actuating lever 101, the opposite side of'the portion 111 bearing against the nut 115. It will be understood that the sleeve 113, nut 115 and spring 117 can be adjusted lengthwise of rod 112 and secured in adjusted position by screwing the nut up tight against the sleeve so as to act as a lock nut. The adjustment of sleeve 113 will not contract the spring or modify or materially modify the force thereof. Such adjustment of the nuts likewisecauses an adjustment of the controlling member or lever 101 around its pivot. When the lever 101 isturned by the travel of the carriage as will presently ap pear, it results in moving, through the interposed spring 117 thewire link or connecting rod 112 in the direction of its length and toward the rear of the machine. Thus as the end 111 of the lever moves rearwardly against the spring 117, the opposite end of the latter, bearlng against the head 116, causes the rod or link to be moved without compressing, or materially compressing, the spring 117 under ordinary conditions. I But if undue resistance, for reasons which will presently appear, obstructs the movement of the locking bar, then the spring 117 will be compressed without transmitting movement to the link 112 until such resistance is no longer efiective to hold the link. Then the force of the spring 117 will cause the link to be moved and complete the movement of the locking bar to indicated in Fig. 11..

A so-called final line lock trip and stop device 121 made of sheet metal is secured to the carriage near the right-hand end thereof, and is provided with two contact edges or faces 122 and 123, the former of which is in the nature of a final line lock trip adapted to coact with the contact edge 106 on the line lock lever 101, whereas the other contact face 123 is a final carriage stop adapted to coactwith a stop face 124: on the fixed bracket 85. This results in causing a final operation of the line locking device and a final arrest of the carriage, as will hereinafter more, clearly appear. have also provided a final margin stop 125 at the left-hand end of the carriage, Figs. 1 and 10, which is made of sheet metal and is adapted to coact with a contact face or edge 126 on the opposed side of the fixed bracket 85,thus effecting a final arrest of the carriage in its movement to the right.

The operation of the line lock and alarm and margin stop, mechanism will best be understood from an inspection if Figs. 1, a and 6 to 10 inclusive, where the parts are shown in the different positions they assume at diiferent steps in the operation. As the carriage approaches the end of a line as determined by the adjustment of the stop 66 along the bar 55, the trip pin engages the pin 90 on the bell ringer lever 87, as shown in Fig. 1, turning the leven and eventually releasing it as the carriage continues to move, thereby sounding the alarm. As the carriage continues its movement the trip pin 80 will engage the contact 105 on the line locking lever and turn the'lever on its pivot. As the parts appear in Fig. 6 the trip pin 80 has engaged the contact 105 and shifted the line locking lever, thereby causing a rearward movement of the link 112 through the interposed spring 117, and the lug 78 has engaged the fixed stop 84, preventing further movement of the carriage toward the left. The construction is such that the strain of arresting the carriage comes on the parts 78 and 84, and not on the lever 101 and its connected devices. The sleeve 113, Fig. 1 1, is so adjusted that the lever 101 has'been moved the right amount to eiiect the line lock, at the time when lug 78 is in contact with stop 84. The effect of moving-lever 101 is ordinarily to move the lower end of the locking bar rearwardly-and bring the flange 3G thereon beneath the contacts 30 on the entire system of key levers, thereby limiting the extent of depression of the key level-sand preventing a complete printing movement thereof. Should the operator desire to release the line lock in order to add one or more letters to complete a. word, or to introduce a hyphen, it is merely necessary to liftthe rack bar 55 with the aid of the finger piece 6 1. This results in bringing about a movement of the parts to some such position as that indicated in Fig. 7 where the trip 80 is disengaged from the contact face 105, allowing the lever 101 and parts controlled thereby to return to releasing position. The trip 80 then rests on top of the arm on which said contact face 105 is formed, the stop 7 8 at the same time being freed from the stop 8% rests on the top thereof. After several letters have been added the parts will automatically assume a position such as is shown in Fig. 8, where the contact face 122 of the final stop has engaged the contact face 106 of the line lock lever and shifted the latter to cause the locking bar to be again moved to locking position. At this time the contact face 123 on the final stop engages its coacting stop 124, thus arresting thecarriage against fill? ther movement to the left. In the return of the carriage the pin 80 will ride up on the cam face 107 on the line lock lever, thus causing the stop bar to be lifted until the pin 80 passes to the right of the contact face 105, when the stop bar may drop to normal position, again carrying the trip pin 80 into cooperative relation with the contact face 105, as represented in Figse and 6. In this movement of the carriage back past the line lock lever, the bevel or cam face 79 on the line lock stop may engage the fixed stop 84 and ride over it, lifting the rack bar against the tension of its spring, so as to prevent the stops from obstructing the return movement of the carriage. During this return movement the pinor trip 80 when it reaches the cam face 91 of the alarm mechanism will ride up on said cam over the pin 90, causing the rack bar to be lifted.

Should the operator desire to write Within the margin it is merely necessary to lift the rack bar with the aid of the finger piece 6%, thus freeing the stop 82 from engagement with or clearing the stop 84:, and enabling the operator to write within the margin. When the carriage reaches the end of the travel to the right, the final margin stop 125 engages the side edge or face 126 on the fixed bracket, as indicated in Fig. 10, thus preventing a further movement of the carriage to the right. In the forward movement of the carriage from this position the cam face 83 on the margin stop coacting with the stop carriage, so that the relation between these parts is not affected by the case shitting movements. The line lock lever 101, however, is carried by a fixed part of the machine for cooperation with the line lock bar, which is likewise carried by a fixed portion of the machine for cotiperation with the key levers that do not shift. However, the length of the contact faces 105, 106 on the line lock lever is suficient to enable'the trip pin and the contact face 122 of the final line lock stop respectively, to coact therewith in either shifted position of the carriage. It is helieved that this will be rendered apparent from a consideration of the full and dotted line positions of the parts illustrated in Fig. 1 of the drawings. In one position of the parts the trip pin 80 coacts with the contact face 105 near the outer edge thereof, whereas when the carriage is in the other case posi tion the trip pin 80 coacts with the contact edge 105 near the inner end thereof. In a like manner the final line lock contact face 122 coacts with the contact edge 106 either nearer to or farther from the fulcrum of the line lock lever 101, depending on the case shift position of the carriage.

If for any reason there is an obstruction in the path of the line lock bar which provents it from being moved to the operative position at the time'when the line lock lever is actuated by the travel of the carriagathis, as hereinbefore indicated, merely results in compressing the spring .117 without trans mittlng movement to the link 112. If, for example, the operator should maintain one of the finger keys depressed at the time that the line locking operation should takeplace, the rear edge of the locking flange 36 might be brought into engagement with the extension 29 above the contact face 30 on the depressed key lever, preventing a movementof the locking bar to locking position. As soon, however, as pressure is released on the depressed key it returns to normal position and the force of the spring 117 is then eil'ectiveto automatically move the locking bar to locking position, and prevent an operation of any of the key levers, the flange being at this time beneath the engaging portions 30 on all of the levers.

From the foregoing description it will he understood that I have provided simple, light, compact and efiicient line lock, alarm and margin stops mechanism, the parts of which are made almost entirely of sheet metal, and which is inexpensive to make and assemble. It will be seen, moreover, that by shifting most of the coacting elements of such mechanism with the carriage in the case shifting movements of the latter, their-operative relation remains unaffected, and the use of complicated connecting means is avoided. Furthermore, where in some instances, some of the parts of the mechanism are of necessity carried by a fixed portion of the machine, and are operated by parts which are carried by and shift with the carriage, I have so combined the parts that operative relation is nevertheless maintained between the parts without resorting to complicated trains of connections.

Finally it will be understood that the con struction of my present invention is par ticularly useful in a light, portable machine of the character described, and aids materially in the production of such a machine.

In my hereinbefore mentioned application I have claimed certain features herein shown and described relating to the carriage shift mechanism, and to the detachable section thereof by which the carriage and parts associated therewith may be detached from the present case being restricted to features not claimed in my companion case, or only claimed therein, in combination with other features not claimed herein. In my said companion application, some of the features claimed herein, are claimed in combination with the other parts, such as the case shift mechanism and the detachable section thereof;

- What I claim as new and desire to secure by Letters Patent, is-

1. In atypewriting machine, the combination of a carriage mounted for bodily case shift movement, independent primary and final line lock trips carried by and shifting with the carriage, the former being adjustable inde endently of the latter in the direction of the travel of the carriage to deter mine the initial point of line locking, and line lock mechanism including an actuating element mounted on a fixed part of the machine and held against case shift movement with the carriage and with which both of said trips are cooperative in either vshifted position of the carriage. I

2. In a typewriting machine, the combination of a carriage mounted for bodily case shift movement, two line stops shiftable with the carriage in its case shifting movements, one of said stops traveling with the carriage and the other fixed against such traveling movement, a line lock trip carried by and shifting with the carriage, and line lock mechanism including an actuating element 65 mounted on a fixed part of the machine and the machine as a single unit, the claims of,

cam, the final trip coacting only with the other of said contacts.

a. In a typewriting machine, the combination of a carriage mounted for case shift movement, and line lock mechanism controlled thereby, said mechanism including primary and final line lock trips which shift with the carriage, and an actuating member formed with two contacts in different planes and a cam associated with one of said contacts, the primary trip coacting only with one of said contacts and with the cam, and the final trip coacting only with the other of said contacts, said actuating member being fixed against movement with the carriage in the case shift movements of the latter but cooperative with both of said trips irrespective of the positions to which they may be shifted with the carriage.

5. Line lock mechanism for typewriting machines comprising two carriage-carried line lock trips, a sheet metal line lock bell crank lever having one arm connected with a line locking device and the other arm bent and formed with two contacts in different planes and each coacting only with a given one of said trips to cause a primary and a final operation of said lever.

6. in a typewriting machine, the combi- 10 nation of a carriage mounted for case shifting movement, line lock trips carried by the carriage and movable therewith in its case shifting movements, and a line lock lever operatively connected with a line lock device and fixed against shifting movement with the carriage, said lever having two contacts in different planes and each enacting only with a given one of said trips, each contact being of sufficient width to coact with its trip irrespective of the position to which the latter may be shifted with the carriage.

'7. In a typewriting machine, the combination of a carriage mounted for case shifting movement, a line lock trip carried by the carriage and shiftable therewith and adjustable in the direction of the travel of the carriage to determine the point in the travel of the carriage where the line lock shall become effective, and a line lock lever fixed against shifting movement with the carriage and having a wide contact thereon of suflicient width to compensate for the shift of said trip and coact therewith irrespective of the position to which the trip may be shifted with the carriage in the case shifting movements of the latter.

8. In a typewriting machine, the combination of printing key levers, a locking bar coiiperative therewith to limit the movement thereof, a carriage carried line lock trip, an actuatin member with which said trip coacts, and intermediate connections between said member and bar including a spring through which motion is transmitted from the member to the bar, and adjustable means forvarying the normal relation between said member and bar without altering or materially altering the efiective force of said spring.

9. In a typewriting machine, the combination of printing key levers, a locking bar coiiperative therewith to limit the movement thereof, a carriage-carried line lock trip, a pivoted actuating member with which said trip coacts, and intermediate connections between said member and bar including a link, a spring through which motion is transmitte'd'from the pivoted member to the link, and adjustable means for varying the normal relation between said member and link without altering or materially altering the efi'ective force of said spring.

10. In a typewriting machine, the combination of printing key levers, a locking bar coiiperative therewith to limit the movement thereof, a carriage-carried line lock trip, an actuating member with which said trip coacts, and intermediate connections between said member and bar including 'a link, an adjustable sleeve which surrounds said link, a spring which surrounds said sleeve and through which motion is transmitted from said member to said bar, and a nut threaded on said link and coiiperating with said sleeve.

11. In a typ'ewriting machine, the combination of a carriage mounted to receive a case shift movement, a stop bar carried byand shifting with said carriage, two carriage stops carried by said bar and traveling with said carriage, each adjustable in the direction of the travel of the carriage to determine the points of its arrest, a trip in the carrier ofone of said stops, a stop fixed against traveling movement but which shifts with the barriage and with which the said traveling stops coact, and line lock devices including an actuating member fixed against shifting movement with .the carriage but operative by the said trip on the carrier one of said carriage-carried stops irrespective of the case shift position to which the carriage may be moved.

12. In a typewriting machine, the combination of a carriage mounted to receive a case shift movement, a stop bar carried by and shifting with said carriage, two carriage stops carried by said bar and each adjustable along the bar, a stop fixed against traveling movement but which shifts with the carriage and with which 'both of said traveling stops coact to arrest the carriage in its movements in opposite directions, a trip on the carrier of one of said stops,line lock devices including an actuating member fixed against shifting movement with the carriage but operative by said trip irrespective of the case shift osition to which the carriage may be movel and a bell and hell hammer mounted to shift with the carriage, said hammer being actuated by said trip.

13. In a typewriting machine, the combination of a carriage mounted to receive a case shift movement, a pivoted stop bar carried by and shifting with said carriage, two carriage stops carried by and adjustable along said bar, a. trip on the carrier of one of said stops, a stop fixed against traveling movement but'which shifts with the carriage and with which the said traveling stops coact, line lock devices includin an actuating member fixed against shi ing movement with the carriage but operative by said trip irrespective of the case shift position to which'the carriage may be moved, and cams by which the stop bar may be automatically turned on its pivots to permit a return of the carriage after itsnormal predetermined point of arrest in either direction has been passed.

"14. In a typewriting machine, the combination of a carriage mounted to receive a case shift movement, a stop bar carried by and shifting with said carriage, adjustable and traveling stops carried by said bar, a

stop fixed against traveling movement but which shifts with the carriage and with which the said traveling stops coact, line lock devices including an actuating member .fixed against shifting. movement with the carriage but operative by a trip on one of said traveling stops irrespective of the case shift position to which the carriage may be moved, and a locking bar which coacts with printing key levers and is controlled in its movement into and out of locking position by said actuating member.

15. In a typewriting machine the combination of a carriage mounted to receive a case shift movement, a sheet metal carriage stop carried by the carriage and shifting therewith, a sheet metal stop-carrying bracket secured to the carriage support and shifting with the carriage and with which the carriage-carried stop coacts, a sheet metal actuating member fixed against shifting movement with the carriage and with which a trip on the carriage-carried stop coacts in either shifted position of the carriage, and a sheet metal locking bar controlled by said actuating member and cotiperative with type bar actuating devices to limit the printing movements thereof.

16. In a typewriting machine, the combination of acarriage mounted to receive a case shift movement, a sheet metal carriage stop carried by the carriage and shifting therewith, a sheet metal stop-carrying bracket secured to the carriage support and shifting with the carriage and with which the carriagemarried stop coacts, a sheet metal actuating memberfixed against shitting movement with the carriage and with which a trip on the carriage-carried stop coacts in either shifted position of the carriage, a sheet metal locking bar controlled by said actuating member and cooperative with type bar actuating devices to limit the printing movements thereof, a bell shiftable with the carriage, a sheet metal bell trip lever which shifts with the carriage and is operated by a. trip on the carriage-carried stop, and a bell hammer carried by said bell trip lever.

17. In a typewriting machine, a stop or trip of sheet metal bent to form two parallel side plates that embrace a rack and to form by the integral connection between said plates a locking tooth that is adapted to engage between teeth on the rack, and means for securing said plates together and for maintaining them spaced apart.

18. In a typewriting machine, a stop or trip of sheet metalbent to form two parallel side plates that embrace a rack and to form by the integral connection between said plates a locking tooth that is adapted to engage between teeth on the rack, and devices for securing said plates together and for maintaining them spaced apart, one of said devices constituting a fulcrum which in bearing against the rack enables the stop or trip to swing bodily and carry the tooth thereon into and out of engagement with the rack teeth.

19. In a typewriting machine, a stop or trip of sheet metal bent to form two parallel side plates that embrace a rack and to form by the integral connection between said plates a locking tooth that is adapted to engage between teeth on the rack devices for securing said plates together and for maintaining them spaced apart, one of said devices constituting a fulcrum which in hearing against the rack enables the stop or trip to swing bodily and carry the tooth thereon into and out of engagement with the rack teeth, and a spring carried by said stop or trip and which bears at one end against the latter and at the other end against the rack and forces the stop or trip to turn and bring the locking tooth thereon into engagement with the rack teeth;

20. A stop or trip comprising two sheet metal side plates arranged parallel to each other and embracing a rack, an intervening locking tooth between said plates, devices for uniting said plates and for maintaining them spaced apart, one of said devices constituting a fulcrum which bears against the stop bar and enables the stop or trip to turn thereon, and spring means for normally holding the stop or trip in one of its pivotal positions with the locking tooth engaging between the teeth of the rack bar.

21. In a 'typewriting machine, the combination with a line lock bar, of a series of key actuated operating devices for the printing instrumentalities, said devices varying in length and having engaging contacts that coact with the locking bar and vary in distance therefrom according to the variation in length of said devices.

22. In a typewriting machine, the combination with a line lock bar, of a series of key levers that vary in length and the dip of the keys of which is substantially uniform, said levers having engaging contacts that coact with the locking bar and vary in distance therefrom according to the variation in length of said levers.

23. In a typewritin machine, the combination of a series of ey actuated type bar operating devices, a locking bar adapted to be engaged by said devices and having an opening extending longitudinally thereof, and a second series of type bar actuating de-. vices extending through said opening and operatively connected to the first mentioned operating devices.

24. In a typewriting machine, the combination of a series of key levers, a locking bar adapted to be engaged by said key levers and having an opening extending longitudinally thereof, and a. series of sublevers extending through said opening and operatively connected to said key levers.

25. In a typewriting machine, the combination of a series of key levers that extend fore and aft of the machine, an upright sheet metal plate-like locking bar adapted to be engaged by said key levers and having an opening extending longitudinally thereof, and a series of sublevers extending fore and aft of the machine through said opening and operatively connected with said key levers.

26. In a typewriting machine, the combination of a series of key levers which extend fore and after of the machine, an upright sheet metal plate-like locking bar pivoted above the key levers and having an opening extending longitudinally thereof and a flange with which the key levers are adapted to engage, and a series of sublevers arranged above the key levers and extending fore and aft of the machine through said opening and operatively-connected to said key levers.

27. In a typewriting machine, the combination of a carriage comprising an end plate apertured to form two stop faces by the walls thereof, a stop bar, and sheet metal arms pivoted to the carriage and forming a support for said-rack bar, one of said arms being provided with an integral stop lug gssnaee which extends into said aperture and with the stop faces formed by the walls thereof to limit the movement of the pivotthereof to limitthe' movement 'ofthe-pivoted arms and stop bar in opposite directions, 15 and one of said arms being bent to form a finger piece by which the stop bar may be moved on the carriage.

Signed at Ilion, in the county of Herkimer and State of New York this 9 day of 20 January, A. D. 1920.

JOSEPH B. HOLDEN.

Witnesses:

VVILBUR J. CLARKE,v 'Emmi'rr L. R1011. 

